Base plate for a processing chamber substrate support



FIG. 1 is a top isometric view of a base plate for a processing chamber substrate support, according to the novel design.

FIG. 2 is a bottom isometric view thereof.

FIG. 3 is a top plan view thereof.

FIG. 4 is a bottom plan view thereof.

FIG. 5 is a front elevation view thereof.

FIG. 6 is a back elevation view thereof.

FIG. 7 is a left side elevation view thereof.

FIG. 8 is a right side elevation view thereof.

FIG. 9 is a cross-sectional view taken along line 9-9 in FIG. 3; and,

FIG. 10 is a cross-sectional view taken along line 10-10 in FIG. 3.

The broken lines depict portions of the article that form no part of the claim. 

CLAIM The ornamental design for a base plate for a processing chamber substrate support, as shown and described. 